کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9506787 | 1340759 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cryptanalysis of Lee-Kim-Yoo password-based key agreement scheme
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
ریاضیات کاربردی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Recently, Lee et al. [S.W. Lee, H.S. Kim, K.Y. Yoo, Improvement of Lee and Lee's authenticated key agreement scheme, Appl. Math. Comput., in press] showed that Lee-Lee password-based authenticated key agreement scheme [N.Y. Lee, M.F. Lee, Further improvement on the modified authenticated key agreement scheme, Appl. Math. Comput. 157 (2004) 729-733] is vulnerable to an off-line dictionary attack and proposed an improved scheme. In this paper, we show that Lee et al.'s scheme is not only incomplete, i.e., two parties establishing a session key may not share a common session key, but also still vulnerable to an off-line dictionary attack, i.e., an adversary can confirm the correctness of a guessed-password by checking if the scheme's flows are in a domain (for example, whether a flow is in GF(n) or not). A main reason causing these security breaches is that the scheme's flows are constructed by using two different types of group operations. Finally, we suggest a simple counter-measure to overcome the problems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 168, Issue 2, 15 September 2005, Pages 858-865
Journal: Applied Mathematics and Computation - Volume 168, Issue 2, 15 September 2005, Pages 858-865
نویسندگان
Jeoung Ok Kwon, Jung Yeon Hwang, Changwook Kim, Dong Hoon Lee,